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Messages - atvracer

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General Mach Discussion / Re: Grizzly G0519 to a CNC
« on: July 26, 2009, 05:21:02 PM »
thanks for your input and link that helps  ;D

 why I choose servos I wanted a closed system to get rid of any miss steps if its only a few more $$ but if you think a stepper would work with out any miss steps I have to look more into it

 I just want to do right the first time buying a stepper system then getting a servo system the same goes with ball screw I don't want to fight the acme threads backlash or am I just way off and inspecting to much from these little machines  ???

thanks aging

General Mach Discussion / Grizzly G0519 to a CNC
« on: July 26, 2009, 12:39:33 AM »
I’m looking at getting a small mill like the Grizzly G0519 and want to convert it to a CNC but before I spend some money I want get an idea of the total cost and get the right parts I want to go with Ball screws and servo motors so here the big questions 

 1    belt drive or direct drive for the servos I would like direct better but?? if belt what ratio
 2    what size and torque of servos
 3    what size ball screws pitch dia and length 

 Any help would be great or put me in a better path

 This is for a home RC Heli hobby shop cutting Carbon sheets and making small alum 3D bearing blocks need to be accurate
thanks aging

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